Topvex TR04 Supply Filter

Genuine Systemair Topvex TR04 supply air filter (for units manufactured before 10.05.2010) — the original replacement supply filter for earlier Systemair Topvex TR04 air handling units. Supplied as a genuine Systemair part to maintain rated airflow, filtration grade and warranty compliance.Please check your unit's manufacture date, as filter dimensions changed in May 2010. Regular filter replacement protects the heat exchanger and fans and keeps the unit running at its designed efficiency.